Improvement in stoves



eets-Sheetl ,z sh G. H. JOHNSON & C. G. MQULTON.

sTovE.

N0.176,96Z. Patented May 2,1876.

im "u m GROVE H. JOHNSON AND CHARLES G. MOULTON, O ERIE,PEN NSYLVANIA. y

IMPROVEMENT IN STOVES.

' Paruivfrl Specification forming part of -Letters Patent No. 176,962, dated May 2, 1876; application filed y Februaryl25, 1876.

To tll'whmn it may concern: l

Be it known that we, GRovE- H. JOHNSON and CHARLES G. MoULfroN, of Erie, in the county of Erie and State of Pennsylvania, have invented a new and useful Improvement in, Stoves.; and We do hereby declare that the following is a full and exact description of the same, reference beingv had to the accompanying drawings, and to the letters of reference marked thereon.

The, object of our invention is, primarily, to provide a convenient and cleanly mode of clearing away ashes, clinkers, and debris arising"l from the combustion of coal in a stove, Qand `the particular mode in whichthe object is, accomplished is by cutting off the'. column of coal and-debris at a point near the v with the uppery part of the fire-pot broken away to show the position ofQour cut-off device, tlx'e iingers of 4which arewithdrawn.

' Fig. `2 is` a central vertical section from the front of the same tothe rear. Fig. 3 isa detached top view of the ring carrying the cut-off fingers, showing 'the position of such fingers when withdrawn, the upper section of the ring being removed. Fig. 4 is a top view of similar parts -and the upper part of the lower section of the repot, showing the position of the cut-olf ngers when projected into the yfire-pot. Fig; 5is a bottom perspective view of one of the lingers of the cut-off device, and Fig. 6 is a vtop perspective view of a portion of the lower section of the re-pot. Similar 'letters denote corresponding parts in each ii gure.

A represents the outer casi-ng of the lower or ash-pit section of a magazine heating-stove,

and B the outer casing of the tire-pot section,

having illuminatingl mica'windows B.- The lire-pot consists of two parts, C C. The' lower section C may be supported by arms resting upon or secured to lugsf(not shown) cast on the innerside of the casing B, or in any convenient manner, and, most conven` iently for illumination, should be slotted or. have openings opposite, or nearly so, to the mica windows B. The upper part of the lower section G is cast with notches or open'- ings a, in each of which is cast or riveted a.

stud, a.

The uppersection G' of the 'rire-pot may be asolid casting, largerat its top than the lower section, and contracted at its lower end to the size of the `upper portion of the lower tire-pot. AThis uppersolid section C" is secured in place .in any convenientvor ,usual way, with the lower end resting on the upper end ofthe lower section. l D is the grate, adapted for rotation and for ,dumping in any convenient or usual way, sup.

ported Within the lower end ofthe lower-iirepot, andhaving convenient means for rotating and dumping the same from the outside of .the stove. This grate, however, is preferably of the form shown, having a central slidingportion, D1, for dumping, and an outer perforated or fingered ring, D2, revolving with the central sliding portion. E is a ring, having 1an outery edge, b, and rests upon the arms [which support the lower section of the iirelpot, fits closely the inside of the casingfB, andis 'on a level with the upper surface of the `lower rire-pot. A block, b', is cast in one port-ion of the ring, and Vhas a socket therein Iadapted to receive a lever, c, which moves in a slot, d, cast in the casing B, and is designed Ito turn such ring. F represents fingers of any desired number, preferably about eight, ,the notches a being the samev in number, which are pivoted at. their inner ends ein the ring E, and .project through the notches or-open-.`

ings a in the upper part vof the lower firepot section.

These lingers can be of any desired form, but are preferably constructed so that, when folded in, they will iill, or nearly so, the openings between the upper and lower sectionsf the fire-pot formed by the notches a.

The outer ends e' of the fingers are pointed and beveled downwardly, and these'lggers have slots f, ofthe shape of an arc of a circle in their under sideswhich are adapted to rest over the studs a.

The fingers resting in the notches in the upper part of the lower fire-pot, and the studs proiecting into the slots in their under sides, it follows that when the ring .E is turned `in one direction by the lever c the fingers will be projected into the coal and dbris in the repot, andv thus separate the same into two parts. Then the ashes, cinders, and dbris below the fingers can be dumped through the4 grate, and the lower part of the tire-pot entirely cleaned out, vafter which, by a reverse movement of thelever, the fingers will be withdrawn, and the live coal, clear of ashes `and dbris, will fall upon the grate, and thus a fresh re will be secured. v

It will be noticed that this device may be used in all sorts of heating-stoves and heat-- ers, and even in cooking-stoves,ranges, furnaces, and' the like, without any substantial change in its construction. It will also be observed that the fingers referred to and de- L scribed as pivoted at their inner ends may be pivoted elsewhere.

The fire-pot is not necessarily constructed in two sections, upper and lower, but may be cast in one piece, with openings the proper distance above the grate, thrcugh which the ngers can enter, without departing from the spirit of our invention. 1

r In the application of this device to a stove, itis to be observed that no s'pecial'sort or form of fire-pot is required, but that one. with its lower portion slotted or fingered is desira- "ble,in connection with illuminating-,windows opposite, for the better inspection of the condition of the fire. Neither is a special sort of grate required, if it is adapted fordumping or removing the cinders, 85o., in the tire-pot; but it is desirable to have it adapted for both rotation and dumping or sliding, and such grate' may be secured within the bottom of the fire-pot; but this is not essential, as it may be immediately below and close to it.

In operation of avstove with our device, the condition of the re being observed, if the live coal in the tire-pot extends down to the point where the cut-olf fingers operate, then, all the doors being closed, and the direct or ash dampers being opened, the fingers are thrust out into the coal, cutting it olf at that point. The central part of the grate being drawn forward, of course all the contents of the firepot below the ngers fall into the ash-pan. Then, the part D of the grate being pushed into position vand the fingers retracted, the live coal above falls upon the grate, and there results a fresh unobstructed re.

Should-the live coal, upon inspection, prove to be above the plane of the cut-offv fingers, then, by rotating the grate sufficiently, the live coal is brought down to the proper point for cutting off.

The principal advantages of our device consists in the entire and almost instantaneous riddance of clinkers and ashes, the cleanliness ofthe operation, and its leaving a clear re, thus producing a much better combustion, and consequently greater degree of heat.

W'e are aware that it is not original with us to cut 0E the coal in the ire-pot,as thesame thing has been heretofore done by means of a separate instrument thrust through openings in one side of the stove and through the mass of coal, and disclaim any such invention.

We are aware of the invention described in the Letters Patent granted July 20, 1875, to L. B. Sprout, and-numbered 165,69@ and disclaim the same.

What we claim as new and our invention xs- 1. In combination with a stove or furnace, a series of fingers and operating mechanism contained wholly within the walls of thesame, when the said fingers are adapted to be projected into thev tire-pot toward a common center, substantially as and for the purposes set forth. v

2. In combination with a stove or furnace, a series of `Iingers and operating mechanism contained wholly within the walls of thev same, when the said fingers are adapted to be projected into. the tire-pot toward a common center, and a sliding grate at the lower end of said tirepot, substantially as and for the purposes set forth.

3. In combination, with a stove or furnace, a revolving ring withinthe walls of the stove, Afingers pivoted to the same, and a tire-pot with suitable opening to permit the passageof the iin gers, substantially as set forth.

4. In afstove or furnace, the combination of the fingers F, having the slotsf, and adapted to be projected through the openings@ in the fire-pot, and the studs a in such openings, substantially as described and shown.

This specification signed and witnessed this 1st day of July, 1875. v

GROVE H. JOHNSON. CHARLES G. MOULTON. Witnesses:

YW. T. BLAcK, l. JACOB F. WALTHER. 

